AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS美国农业经济学杂志
AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS(英文缩写 AM J AGR ECON),ISSN 0002-9092,eISSN 1467-8276,中文译名:美国农业经济学杂志 是一本学术期刊。本页汇总该期刊的最新影响因子、分区信息以及最新收录于 PubMed 的文献,帮助您快速了解期刊全貌。
发文量统计区间：2025-11-01 至 2026-10-31，按本站收录文献的发表日期统计。
期刊介绍
历年影响因子趋势
| JCR 数据年份 | 影响因子 | JCR 分区 |
|---|---|---|
| 2021 | 3.757 | Q2 |
| 2022 | 4.200 | Q1 |
| 2023 | 4.200 | Q1 |
| 2024 | 3.300 | Q1 |
| 2025 | 4.900 | Q1 |
AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS 最新收录文献
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1. {"_":"How does the Kids SIPER Program Impact the Sugar-Sweetened Beverage Intake of Students: An Investigation beyond Total Treatment Effect in Randomized Controlled Trial.","i":["smart"]}
1. 儿童SIPER项目如何影响学生的含糖饮料摄入：一项随机对照试验中超出总体治疗效果的调查PMID:日期:2026-03-19This study develops and empirically estimates a structural framework to decompose the causal pathways of multilevel behavioral interventions targeting adolescent health behaviors. We apply this framework to the Kids SIPER (KSS) program, a 6-month, school-based intervention evaluated through a clustered randomized control trial in rural Appalachia to reduce sugar-sweetened beverage (SSB) consumption among 7th-grade students. KSS includes a classroom-based student component (KSS-S) grounded in the Theory of Planned Behavior and health literacy, and a caregiver component (KSS-C) delivered through two-way text messaging to modify household beverage practices. Using structural equation modeling grounded in a Stackelberg household production framework, we estimate how behavioral strategies, health literacy, and caregiver-child decision-making jointly shape students' SSB intake. Stronger behavioral intentions are associated with a 5.30 oz/day reduction (p<0.01), and the caregiver decision index (capturing household rules, availability, and role modeling) corresponds to a 16.41 oz/day reduction. KSS-S reduces intake by 6.42 oz/day (p<0.05), largely through a direct pathway (6.23 oz/day, p<0.05). KSS-C reduces intake by 4.22 oz/day, primarily through caregiver-mediated effects (3.36 oz/day). Combined, both components reduced students' SSB consumption by 10.64 oz/day (36% from baseline) (p<0.01). We use the estimated structural parameters to simulate hypothetical SSB tax scenarios, finding that KSS achieves reductions comparable to those generated by modest tax rates. This suggests that school-based behavioral interventions like KSS can function as complementary or alternative policy tools. By identifying causal mechanisms and enabling counterfactual policy simulations within a unified framework, the structural approach provides richer policy insights than average treatment effects alone.
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2. Net Worth Poverty and Food Insecurity.
2. 净资产贫困与粮食不安全PMID:日期:2025-03-12Food insecurity is a widespread problem faced by American families, particularly those with children. It is clear that poverty contributes to food insecurity, but extant research focuses almost exclusively on income poverty (IP). We move beyond income-centric conceptions of poverty to propose that net worth poverty (NWP) is an important, but overlooked, measure of marginalization and financial hardship that puts families at risk of food insecurity. A family is NWP if they have insufficient net worth to meet basic needs for three months, and NWP has increased in recent decades even while IP declined. This paper explores how NWP and its two subcomponents-asset and debt poverty-relate to food insecurity using data from the 2015-2021 Panel Study of Income Dynamics on 5,762 households with at least one resident child under 18. Net worth poor households were 11.3% more likely than households that were neither net worth nor income poor to be food insecure. Although asset poverty and debt poverty were associated with increased risks, asset poverty more than doubled the risk of food insecurity relative to debt poverty. Black and Hispanic child households were more likely to be NWP and food insecure than White households, but associations between poverty and food insecurity did not vary by racial and ethnic subgroup. Findings demonstrate how low wealth, including financial assets and debts, affect risks of food insecurity.
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3. Increasing Production Diversity and Diet Quality: Evidence from Bangladesh.
PMID:日期:2023-08-25In the context of rural Bangladesh, we assess whether agriculture training alone, nutrition Behavior Communication Change (BCC) alone, combined agriculture training and nutrition BCC, or agriculture training and nutrition BCC combined with gender sensitization improve: (a) production diversity, either on household fields or through crop, livestock or aquaculture activities carried out near the family homestead and (b) diet diversity and the quality of household diets. All treatment arms were implemented by government employees. Implementation quality was high. No treatment increased production diversification of crops grown on fields. Treatment arms with agricultural training did increase the number of different crops grown in homestead gardens and the likelihood of any egg, dairy, or fish production but the magnitudes of these effect sizes were small. All agricultural treatment arms had, in percentage terms, large effects on measures of levels of homestead production. However, because baseline levels of production were low, the magnitude of these changes in absolute terms was modest. Nearly all treatment arms improved measures of food consumption and diet with the largest effects found when nutrition and agriculture training were combined. Relative to treatments combining agriculture and nutrition training, we find no significant impact of adding the gender sensitization on our measures of production diversity or diet quality. Interventions that combine agricultural training and nutrition BCC can improve both production diversity and diet quality, but they are not a panacea. They can, however, contribute towards better diets of rural households.
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4. Impact of COVID-19 and Nationwide Lockdowns on Vegetable Prices: Evidence from Wholesale Markets in China.
PMID:日期:2021-03-07In this paper, we employ a combination of time regression discontinuity design method (T-RD) and the difference-in-difference method (DID) to identify and quantify the causal effects of the strict lockdown policy on vegetable prices using multiple-year daily price data from 151 wholesale markets of Chinese cabbage. We find that the lockdown policy caused a large and immediate surge in price and price dispersion of Chinese cabbage, though they fluctuated smoothly for the same period in normal years. The DID results further show that the price surge peaked in the fourth week of lockdown but gradually came down to the level of a normal year by week 11. However, the price rose again (though to a much smaller extent) in response to the resurgence of COVID-19 in a few provinces in early-mid April but quickly returned to the normal level in week 15 when the lockdown measures were largely removed. We also find that the supply chain disruption is the driving factor for the price hike. Policy implications are drawn.
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5. The Importance of Agriculture in the Economy: Impacts from COVID-19.
PMID:日期:2021-03-07Much of the attention from COVID-19 has been on the impacts on tourism and other service sectors; but there has been a growing interest in some agricultural and food topics, such as the decline in food away from home (FAFH) expenditures. Our work considers the importance of FAFH in the overall economy, and we also consider changes in agricultural production and trade that have occurred because of COVID-19. We gather data on actual changes to these components, as well as similar shocks to non-agricultural sectors, and employ a simulation model to estimate the impacts on gross domestic product (GDP). Results indicate that changes from agriculture due to COVID-19 have had a larger effect on the overall U.S. economy than the share of agriculture in the economy at the beginning of COVID-19. But the non-agricultural shocks still outweigh the impacts from agriculture by a magnitude of 3. Breaking the results down along the components, we find that the loss in FAFH expenditures is the largest contributor to the change in GDP resulting from shocks to agricultural markets and conclude that agricultural production/trade markets have been very resilient during the pandemic. Our results also indicate that our model (computable general equilibrium) does reasonably well in estimating GDP compared to actual changes due to the inclusion of data on actual demand, supply, and fiscal responses to COVID-19.
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6. Food Consumption and Food Security during the COVID-19 Pandemic in Addis Ababa.
6. 亚的斯亚贝巴COVID-19疫情期间的粮食消费与粮食安全PMID:日期:2021-02-23International humanitarian organizations have expressed substantial concern about the potential for increases in food insecurity resulting from the COVID-19 pandemic. We use a unique panel survey of a representative sample households in Addis Ababa to study both food security and food consumption during the pandemic. In contrast to some other countries in the region, Ethiopia never went into a full lockdown severely restricting movement. Despite subjective income measures suggesting a large proportion of households have been exposed to job loss or reduced incomes, we find that relative to a survey conducted in August and September of 2019, food consumption and household dietary diversity are largely unchanged or slightly increased by August 2020. We find some changes in the composition of food consumption, but they are not related to shocks found in previous phone surveys conducted with the same households. The results therefore suggest the types of subjective questions about income typically being asked in COVID-19 phone surveys may not appropriately reflect the magnitude of such shocks. They also imply, at least indirectly, that in the aggregate food value chains have been resilient to the shock associated with the pandemic.
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7. Would A National Sugar-Sweetened Beverage Tax In The United States Be Well Targeted?
7. 美国的国家含糖饮料税能否精准施策？PMID:日期:2021-02-02Sugar-sweetened beverage (SSB) taxes have been proposed to discourage excessive sugar consumption, but it is unclear how high- vs. low-SSB purchasers respond to such taxes. We first examine heterogeneity in the purchase and financial effects of a national SSB tax across different types of households buying varying amounts of SSBs. We find high-SSB purchasers are less responsive to SSB price changes than low purchasers but make larger absolute reductions in SSB purchases in response to the tax, given their notably greater purchase levels prior to the tax. Nonetheless, the economic burden of the tax falls more heavily on high-SSB purchasers who are more likely comprised of lower-income households. We then investigate whether the income regressivity of the tax will be mitigated if low-income households are targeted by fruit and vegetable (FV) subsidies. We show that depending on the tax pass-through and subsidy rates, FV subsidies can fully offset high-SSB purchasers' tax burdens, and subsidy transfers are distributed relatively uniformly across the SSB purchase distribution of low-income households. Therefore, FV subsidy transfers would be financially more beneficial to low- and moderate-SSB purchasers because they bear smaller shares of the tax burden than high-SSB purchasers.
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8. {"_":"COVID-19 and Supply Chain Disruption: Evidence from Food Markets in India.","sup":["†"]}
PMID:日期:2020-10-25This paper looks at the disruption in food supply chains due to COVID-19 induced economic shutdown in India. We use a novel dataset from one of the largest online grocery retailers to look at the impact on product stockouts and prices. We find that product availability falls by 10% for vegetables, fruits, and edible oils, but there is a minimal impact on their prices. On the farm-gate side, it is matched by a 20% fall in quantity arrivals of vegetables and fruits. We then show that supply chain disruption is the main driver behind this fall. We compute the distance to production zones from our retail centers and find that the fall in product availability and quantity arrivals is larger for items that are cultivated or manufactured farther from the final point of sale. Our results show that long-distance food supply chains have been hit the hardest during the current pandemic with welfare consequences for urban consumers and farmers.
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9. Rural Food Markets and Child Nutrition.
9. 农村食品市场与儿童营养PMID:日期:2019-09-03Child dietary diversity is poor in much of rural Africa and developing Asia, prompting significant efforts to leverage agriculture to improve diets. However, growing recognition that even very poor rural households rely on markets to satisfy their demand for nutrient-rich non-staple foods warrants a much better understanding of how rural markets vary in their diversity, competitiveness, frequency and food affordability, and how such characteristics are associated with diets. This article addresses these questions using data from rural Ethiopia. Deploying a novel market survey in conjunction with an information-rich household survey, we find that children in proximity to markets that sell more non-staple food groups have more diverse diets. However, the association is small in absolute terms; moving from three non-staple food groups in the market to six is associated with an increase in the number of non-staple food groups consumed by ˜0.27 and the likelihood of consumption of any non-staple food group by 10 percentage points. These associations are similar in magnitude to those de-scribing the relationship between dietary diversity and household production diversity; moreover, for some food groups, notably dairy, we find that household and community production of that food is especially important. These modest associations may reflect several specific features of our sample which is situated in very poor, food-insecure localities where even the relatively better off are poor in absolute terms and where, by international standards, relative prices for non-staple foods are very high.
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10. The household and individual-level productive impacts of cash transfer programs in Sub-Saharan Africa.
PMID:日期:2019-03-26Silvio Daidone is a economist and Benjamin Davis is a Strategic Program Leader, both with the Food and Agriculture Organization of the United Nations, Rome, Italy. Sudhanshu Handa is a professor at the University of North Carolina at Chapel Hill. Paul Winters is the Associate Vice-President of the Strategy and Knowledge Department, International Fund for Agricultural Development, Rome, Italy. The research presented in this article has been carried out under the auspices of the "From Protection to Production" (PtoP) project, a collaborative effort of the United Nations Children's Fund, the United Kingdom Department for International Development (DFID) and the Food and Agriculture Organization of the United Nations (FAO). The project has received funding from the DFID Research and Evidence Division, the European Union through the "Improved Global Governance for Hunger Reduction Programme", and the FAO Regular Fund. The authors would like to thank the following: two anonymous reviewers and the journal editor, who have provided excellent comments and significantly contributed to the improvement of the article; Alejandro Grinspun, Fabio Veras Soares, and Marco Knowles for technical review of previous drafts; Ervin Prifti and Noemi Pace for their useful suggestions and comments. The authors are also grateful to participants at the following conferences and workshops: 2017 APPAM International Conference, Brussels; 2016 Transfer Project workshop, Addis Ababa; 2016 IFAD-3IE Designing and implementing high-quality, policy-relevant impact evaluations, Rome; 2015 SASPEN Conference on Social Protection, Johannesburg; 2015 Global Food Security Conference, Ithaca; 2014 IPEA International Seminar "Social protection, entrepreneurship and labor market activation - Evidence for better policies", Brasilia; 2014 University of Florence, Department of Economics & Management Seminars, Florence; 2014 Africa Community of Practice (CoP) on Conditional Cash Transfers and Cash Transfers; 2014 African Union Expert Consultation on Children and Social Protection Systems, Cape Town; 2014 IDS Graduation and Social Protection Conference, Kigali. The authors would also like to remember Josh Dewbre, a founding member of the PtoP team, who passed away in April 2015, who had participated in the fieldwork and in the analysis of several programs included in this study. All mistakes and omissions are those of the authors.